Coventry · West Midlands
Floor joist repairs in Coventry
Houses in Coventry and across West Midlands with suspended timber ground floors rely on dry walls and a ventilated void to stay sound. When either fails, rot usually starts at the edges of the room long before anything shows in the middle.
Guide price from£250per joist inc VAT
- Postcodes
- CV1, CV3, CV5
- Population
- about 350,000
- Area
- West Midlands
- Pricing region
- West Midlands
What is the ground like in West Midlands?
Coventry, West Midlands: about 350,000 residents across postcode districts CV1, CV3, CV5. Neighbouring towns we cover: Kenilworth (5 miles), Bedworth (5 miles) and Nuneaton (8 miles).
Clay soils are found in parts of West Midlands. Parts of West Midlands lie on a former coalfield, so a coal mining search is worth checking if movement has no obvious cause. Typical buildings in West Midlands: Victorian terraces, inter-war semis, Black Country industrial housing and large post-war estates.
How we usually approach floor joist repairs
Sistering a joist
A new length of treated timber, the same depth as the original, is bolted or screwed alongside the damaged joist so the two share the load. It is the quickest fix for a notched, cracked or sagging joist that is otherwise sound, usually after lifting a few boards.
Best for: Cut, cracked or sagging joists with sound ends
Splicing ends and fitting hangers
Where only the end has rotted, it is cut back to sound timber and a new piece is fixed alongside, bearing on the wall or on a new joist hanger. Missing or under-nailed hangers elsewhere are replaced at the same time. The damp in the wall must be fixed too.
Best for: Rotten joist ends in damp solid walls
What happens during floor joist repairs, step by step?
Photos and a call
Send photos of the dip or soft area, the outside wall at ground level and any air bricks. A short call about when it started, and any recent plumbing or heating work, tells us whether the problem is local or widespread.
Written quote
You get a no-obligation written quote listing which joists are sistered, spliced or replaced and any sleeper wall or ventilation work. It becomes a fixed price in writing once the repair is specified.
Relay and ventilate
Boards are relaid or replaced, skirting refitted and air bricks cleared or added outside. We point out anything that would let damp back in, such as soil heaped against the wall, so the repair lasts.
What to look for before calling about floor joist repairs
- A musty smell, or fungal strands showing between the boards
- Floor dipping towards an outside wall or in the middle of the room
- Soft or spongy boards near outside walls, hearths or the bathroom
Floor joist repairs prices in Coventry
Guide prices below are for homes in Coventry, on West Midlands rates and including VAT. A survey or good photos let us turn them into a fixed written price.
| Item | Guide price | Per |
|---|---|---|
| Splicing or sistering a damaged joist | £250 – £400 | per joist |
| Whole room of joists and boards | £2,000 – £6,000 | per room |
| Sleeper wall rebuild and ventilationest. | £400 – £1,500 | per room |
Rules for floor joist repairs in England
Like-for-like repairs such as crack stitching and repointing do not usually need building control approval in England, but anything that changes or strengthens the structure, such as underpinning or rebuilding a wall, does. If the work touches a party wall, the Party Wall etc. Act 1996 may apply.
Questions about floor joist repairs in Coventry
How much will floor joist repairs cost in Coventry?
Guide prices for floor joist repairs in Coventry start from about £250 per joist, including VAT, on West Midlands rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Do you cover Coventry?
Yes, Coventry is covered, along with postcode districts CV1, CV3, CV5. We also cover nearby Kenilworth and Bedworth.
Is the ground in West Midlands prone to subsidence?
The West Midlands is mostly Mercia Mudstone and glacial till, with the South Staffordshire coalfield under much of the Black Country, where shallow coal and limestone workings are recorded around Dudley, Tipton and Walsall. Only an investigation can say why a particular building has moved.
What causes rot in floor joists?
Damp causes almost all joist rot. Joist ends in damp walls, voids with blocked air bricks, leaking pipes and high outside ground levels keep timber wet enough for fungi to grow. Replacing timber without fixing the damp usually means the rot returns.
Is a sagging floor dangerous?
A gentle, long-standing sag is usually not dangerous, and many older floors have moved slightly over a century. A sag that is getting worse, soft boards or a floor dropping near a wall needs checking soon, because rotten joist ends can lose their bearing.
Other structural repairs in Coventry
- Brick arch repairs
- Mining subsidence repairs
- Structural surveys and crack monitoring
- Bowing wall repairs
- Chimney stack repairs
Floor joist repairs near Coventry
Got a bouncy or sinking floor in Coventry? Send a short video of someone walking across it, and we will tell you what it is likely to need.